Interesting puzzle would be massively more fun with undo and reset

Trying out different strategies in this solitaire game is interesting, but annoying to learn strategies because of the lack of an undo move ability. Also, the only way to reset the board is to quit and kill the app. Makes it less explorable and more frustrating. Five stars otherwise.

Bcdfghjklmnpqrstvwxz about SPL-T, v1.11